It seems that the latest version of your package on the opam repository will not compile with the upcoming cmdliner 2.0.0 release.
This is either because you are using deprecated identifiers that are removed in 2.0.0 or because you still use argument converters as pairs which has been (sadly only silently) deprecated since 2017.
There are a few instruction here on how to make it compatible. If you run into problem or need more help use this issue, I'm listening.
It seems that the latest version of your package on the opam repository will not compile with the upcoming cmdliner 2.0.0 release.
This is either because you are using deprecated identifiers that are removed in 2.0.0 or because you still use argument converters as pairs which has been (sadly only silently) deprecated since 2017.
There are a few instruction here on how to make it compatible. If you run into problem or need more help use this issue, I'm listening.